Rifle Special Threat Plate Set SA+ | Guardian RSTP by HighCom

The HighCom Guardian RSTP SA+ (Rifle Special Threat Plate, Stand Alone) is a multi-hit capable, lightweight hard armor plate independently tested against rifle special threats beyond the standard NIJ Level III test round set. It covers high-velocity 5.56x45mm M193 at close range, 5.56x45mm M855 green tip, and 7.62x39mm MSC — rounds that standard Level III plates are not tested against and may not stop. If your threat assessment includes these commonly encountered rifle rounds, the RSTP SA+ is the relevant plate to evaluate, not a standard Level III.

Stand-alone rated means the plate provides its tested protection without requiring a soft armor backer behind it — the RSTP SA+ works as-is in your plate carrier pocket. Multi-hit capable means it is tested to take repeated impacts without catastrophic panel failure. The plate is built from lightweight composite materials that deliver rifle special threat coverage without the weight of a ceramic Level IV plate, making it a viable option for extended-wear applications where Level IV weight is a limiting factor.

The RSTP SA+ is independently lab-tested by an NVLAP-accredited laboratory. Available in shooter cut and swimmer cut profiles. For buyers deciding between Level III and Level IV who are primarily concerned with M193, M855, and 7.62x39mm MSC rather than M2AP armor-piercing, the RSTP SA+ addresses that threat set at a lighter carry weight than Level IV ceramic.